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logarithmic distribution中文什么意思

發(fā)音:   用"logarithmic distribution"造句
  • 對(duì)數(shù)分布
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例句與用法

  1. In this paper , some characteristics of flow movement and sediment transport are analyzed by using the flume experiment data . the cross section of compound channel can be divided into four regions : the undisturbed region in main channel , the interactive region between channel and plain , the undisturbed region in flood plain and the boundary region . in the undisturbed regions , the distribution of longitudinal velocity along the depth has the feature of lograithmic . whereas , in the interactive region , the longitudinal velocity does not obey the logarithmic distribution law , but it can expressed as a revised logarithmic function by using a wake function . on the basis of the kinematic equation the velocity distribution of transverse velocity is obtained . in the boundary region , the longitudinal velocity obeys the law of parabolic distribution . furthermore , according to the simplified diffusion equation , the transverse distribution of sediment concentration in the interactive region is deduced . the analysis is in good agreement with the measured data
    本文根據(jù)漫灘水流的運(yùn)動(dòng)特點(diǎn)，將漫灘水流的復(fù)式斷面分為主槽平衡區(qū)、灘槽交互區(qū)、灘地平衡區(qū)及邊壁區(qū)等4個(gè)區(qū)，并給出了各區(qū)寬度的經(jīng)驗(yàn)公式.根據(jù)灘槽交互區(qū)垂線流速分布的變化特點(diǎn)，提出了附加尾流函數(shù)的對(duì)數(shù)流速分布公式.在簡(jiǎn)化水流運(yùn)動(dòng)方程和泥沙擴(kuò)散方程的基礎(chǔ)上，對(duì)灘槽交互區(qū)內(nèi)垂線平均流速及含沙量沿橫向分布進(jìn)行了理論分析，提出了反映灘槽水流動(dòng)量交換強(qiáng)度的橫向渦量粘性系數(shù)及橫向擴(kuò)散系數(shù)的表達(dá)式，得到了漫灘水流垂線平均流速及含沙量沿橫向分布的解析解，并與實(shí)測(cè)資料吻合較好

百科釋義

    In probability and statistics, the logarithmic distribution (also known as the logarithmic series distribution or the log-series distribution) is a discrete probability distribution derived from the Maclaurin series expansion
    詳細(xì)百科解釋

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